diff --git a/dropshell-build/dropshell-build.sh b/dropshell-build/dropshell-build.sh
index 7a0b3c9..0046c21 100755
--- a/dropshell-build/dropshell-build.sh
+++ b/dropshell-build/dropshell-build.sh
@@ -149,7 +149,7 @@ function get_executable_name() {
     while IFS= read -r line; do
         # Look for set(PROJECT_EXE_NAME ipdemo)
         if [[ "$line" =~ set\(PROJECT_EXE_NAME[[:space:]]+([a-zA-Z0-9_]+)\) ]]; then
-            var_value=$(echo "$line" | sed -n 's/.*set(PROJECT_EXE_NAME[[:space:]]\+\([a-zA-Z0-9_]\+\)).*/\\1/p')
+            var_value=$(echo "$line" | sed -E 's/.*set\(PROJECT_EXE_NAME[[:space:]]+([a-zA-Z0-9_]+)\).*/\1/')
         fi
         # Look for add_executable(${PROJECT_EXE_NAME}
         if [[ "$line" =~ add_executable\(\$\{PROJECT_EXE_NAME\} ]]; then